循環分頁獲取全部數據

/**
 * 循環分頁獲取北森出差數據,當最后一次調用獲取的數據量不足pageSize則表明是最后一頁
 * @param travelDataRequest 出差數據Http請求Request
 */
private List<BusinessData> getAllPageDate(TravelDataRequest travelDataRequest)  {
    List<BusinessData> businessDataList = Lists.newArrayList();
    try {
        int i = ONE;
        while (true) {
            travelDataRequest.setPageIndex(i);
            travelDataRequest.setPageSize(PAGE_SIZE);
            Config config = ConfigService.getConfig(ConstantsUtil.NAME_SPACE_KEY);
            String url = config.getProperty(URL,"");
            logger.info("從阿波羅獲取到出差數據接口URL為:[{}]", url);
            String result = HttpClientUtil.httpPostJson(url, JSON.toJSONString(travelDataRequest) , null).getResult();
            TravelDataResponse travelDataResponse = JSON.parseObject(result, TravelDataResponse.class);
            TravelDataResponse.Data data = Optional.ofNullable(travelDataResponse).map(TravelDataResponse::getData)
                    .orElseThrow(() -> new IllegalStateException("獲取數據為空"));
            List<BusinessData> businessList = data.getBusinessList();
            Integer total = data.getTotal();
            businessDataList.addAll(businessList);

            //如果獲取當前頁的數據總量小於每頁大小,則表明是最后一頁跳出循環
            if (CollectionUtil.size(businessList) < PAGE_SIZE) {
                logger.info("從北森獲取出差數據總共[{}]頁", i);
                break;
            }

            //如果獲取到的數據總量大於等於total則跳出循環
            if (businessDataList.size() >= total) {
                break;
            }

            i++;
        }
        return businessDataList;
    } catch (Exception e) {
        logger.error("調用北森接口獲取出差數據出現異常", e);
        return Lists.newArrayList();
    }
}